EP 3417771 A1 20181226 - A METHOD FOR MONITORING BLOOD PRESSURE, AND A DEVICE THEREOF
Title (en)
A METHOD FOR MONITORING BLOOD PRESSURE, AND A DEVICE THEREOF
Title (de)
VERFAHREN ZUR ÜBERWACHUNG DES BLUTDRUCKS UND VORRICHTUNG DAFÜR
Title (fr)
PROCÉDÉ DE SURVEILLANCE DE LA PRESSION SANGUINE ET DISPOSITIF CORRESPONDANT
Publication
Application
Priority
US 201715628422 A 20170620
Abstract (en)
A device and a method which monitors the pulse transit time of a heart beat is disclosed, i.e. the time taken for a heart impulse to travel from the heart to a limb of a subject. The time taken to travel is calibrated to blood pressure of the subject by a pre-determined formula. However, the calibration is augmented by empirical observations, obtaining several optional calibrations. The most suitable of the calibrations is selected to interpret each pulse transit time reading based on proximity of the pulse transit time. Hence, it is possible that every pulse transit time reading may use a different calibration. The method diminishes the effect of physiological change in the subject which causes drift in a solely formula based calibration.
IPC 8 full level
A61B 5/021 (2006.01)
CPC (source: CN EP US)
A61B 5/021 (2013.01 - US); A61B 5/02125 (2013.01 - CN EP US); A61B 5/02438 (2013.01 - US); A61B 5/14551 (2013.01 - CN); A61B 5/318 (2021.01 - CN); A61B 5/681 (2013.01 - CN); A61B 5/7225 (2013.01 - CN); A61B 5/02444 (2013.01 - US)
Citation (search report)
- [XA] WO 2017028011 A1 20170223 - HUAWEI TECH CO LTD [CN]
- [XP] US 2018078156 A1 20180322 - CHEN WENJUAN [CN], et al
- [A] US 2016302677 A1 20161020 - HE DAVID DA [US]
- [A] WO 2016155138 A1 20161006 - VITA-COURSE TECH CO LTD [CN]
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
DOCDB simple family (publication)
EP 3417771 A1 20181226; CN 109091127 A 20181228; US 2018360323 A1 20181220
DOCDB simple family (application)
EP 18178332 A 20180618; CN 201810631317 A 20180619; US 201715628422 A 20170620